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Sr. Mechanical Engineer

Boston Government Services
Oak Ridge, TN Full Time
POSTED ON 1/7/2026
AVAILABLE BEFORE 3/6/2026

Boston Government Services, LLC. (BGS) is seeking a Senior Mechanical Engineer to support current and upcoming design contracts in Oak Ridge, TN or Idaho Falls, ID.

BGS is an engineering, technology, and security firm helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects. We support clients at every stage, from strategic planning and program management to the execution of engineering and technical activities. We work to attract and retain the best talent because the best talent delivers the best results for our clients. Our capabilities are based on our experience in complex, secure, and highly regulated environments. We leverage our experience and capabilities to provide mission-driven solutions tuned to our client's mission needs and strategic direction.

We are passionate about our culture! At BGS, we hire people who will bring their whole self to work each day because we value operating with openness and inclusivity, welcoming and respecting all. BGS cares for each employee's well-being by offering a comprehensive benefit package and providing a culture of exciting work, excellence, and fun.

If you align with BGS' company values and culture, we would love for you to explore opportunities to join our growing team by checking out the job description below!

Responsibilities:

BGS is looking for a Senior Mechanical Engineer for our Idaho Falls, ID office. This engineer will work in a dynamic multi-discipline environment, accountable for engineering deliverables, calculations, systems and equipment selection, mechanical design, mechanical engineering budget and schedule management, maintain professional relationships with vendors, customers, personnel as required by projects. The Engineer will work with other engineering and technical personnel to ensure overall project goals are met. Periodic travel to project site locations may be required.

  • Application of knowledge of piping systems, pressure vessels, and or HVAC systems in industrial markets such as advanced technology, nuclear facilities, heavy manufacturing, power, and other industrial facilities/systems.
  • Mechanical systems include, but are not limited to, building HVAC, industrial ventilation, dust collection, chillers, cooling towers, boilers, pumps, blowers, natural gas, steam & condensate, compressed air, process water, hygienic piping and equipment, and dry material handling equipment.
  • Develop and manage all aspects of the mechanical design including system design, duct sizing, pipe sizing, equipment sizing and selection, and specifications with datasheets.
  • Contribute to the preparation of construction documents including drawings, specifications, calculations and equipment datasheets.
  • Confirm and review applicable codes and standards such as, but not limited to, the IBC, IMC, IPC, ASME, ASHRAE, API and NFPA.
  • Perform heating and cooling load calculations utilizing software such as Trace.
  • Perform head loss calculations
  • Perform industrial ventilation system design in accordance with OSHA/ANSI standards and ACGIH best practices.
  • Provide technical support during construction including problem solving for field oversights, review of vendor submittals, perform field inspections, and address RFIs.

Requirements:

  • Bachelor's Degree in Mechanical Engineering.
  • 10 years relevant industry experience.
  • Experience working successfully in a collaborative environment.
  • Experience with ASME NQA-1.
  • Experience leading teams of engineers and designers on design projects.
  • Registered Professional Engineer or ability to obtain your PE within the first year of employment in Tennessee and/or Idaho.
  • Successful drug screening.
  • Must be eligible to obtain and maintain a security or clearance badge.
  • Client projects for this position require U.S. Citizenship.

Please remove any below that do not apply:

  • Must be US citizen.
  • Successful drug screening.
  • Must be eligible to obtain and maintain a security or clearance badge.

Preferred Qualifications:

  • Significant experience with industrial utility and HVAC systems.
  • Knowledge of Building Codes including Mechanical Code and Plumbing Code.
  • Knowledge of ASHRAE, ACGIH, and SMACNA Standards.
  • Knowledge of DOE Nuclear Air Cleaning Handbook.
  • Knowledge and previous use of Autodesk Revit.

Choose ONE Option Regarding Location/Work Arrangement:

  • This position is located in Oak Ridge, TN or Idaho Falls, ID.
  • This position is onsite but can be a Hybrid Work Arrangement.

Benefits:

BGS offers a competitive total compensation package to eligible employees. Benefits include Health, Dental, Vision, Life Insurance, Paid Vacation, 401K, Long and Short-Term Disability.

EEO:

BGS is an Equal Opportunity/Affirmative Action employer. All qualified applicants are encouraged to apply and will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.

Exclusive Agreement Disclaimer:

BGS has standing contracts with federal agencies throughout the United States. We require an affirmative exclusive agreement to represent all candidates to our clients. By submitting this application, you are consenting to allow BGS to represent you as a candidate for the role in which you are applying.


Boston Government Services, LLC is an Equal Opportunity employer. All qualified applicants are encouraged to apply and will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.


 

Salary.com Estimation for Sr. Mechanical Engineer in Oak Ridge, TN
$130,844 to $155,069
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